it.unibz.inf.ontop.model.term.functionsymbol.impl

Class StrSPARQLFunctionSymbolImpl

java.lang.Object

it.unibz.inf.ontop.model.term.impl.PredicateImpl

it.unibz.inf.ontop.model.term.functionsymbol.impl.FunctionSymbolImpl

it.unibz.inf.ontop.model.term.functionsymbol.impl.SPARQLLikeFunctionSymbolImpl

it.unibz.inf.ontop.model.term.functionsymbol.impl.SPARQLFunctionSymbolImpl

it.unibz.inf.ontop.model.term.functionsymbol.impl.ReduciblePositiveAritySPARQLFunctionSymbolImpl

it.unibz.inf.ontop.model.term.functionsymbol.impl.StrSPARQLFunctionSymbolImpl

All Implemented Interfaces:

FunctionSymbol, Predicate, SPARQLFunctionSymbol

public class StrSPARQLFunctionSymbolImpl
extends ReduciblePositiveAritySPARQLFunctionSymbolImpl

Nested Class Summary

Nested classes/interfaces inherited from interface it.unibz.inf.ontop.model.term.functionsymbol.FunctionSymbol

FunctionSymbol.FunctionalTermNullability

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	StrSPARQLFunctionSymbolImpl(RDFTermType abstractRDFType, RDFDatatype xsdStringType, ObjectRDFType bnodeType)

Method Summary

Modifier and Type	Method and Description
boolean	canBePostProcessed(com.google.common.collect.ImmutableList<? extends ImmutableTerm> arguments) Could be allowed in the future
protected ImmutableTerm	computeLexicalTerm(com.google.common.collect.ImmutableList<ImmutableTerm> subLexicalTerms, com.google.common.collect.ImmutableList<ImmutableTerm> typeTerms, TermFactory termFactory, ImmutableTerm returnedTypeTerm) Compute the lexical term when there is no input type error
protected ImmutableTerm	computeTypeTerm(com.google.common.collect.ImmutableList<? extends ImmutableTerm> subLexicalTerms, com.google.common.collect.ImmutableList<ImmutableTerm> typeTerms, TermFactory termFactory, VariableNullability variableNullability)
protected ImmutableExpression.Evaluation	evaluateInputTypeError(com.google.common.collect.ImmutableList<ImmutableTerm> subLexicalTerms, com.google.common.collect.ImmutableList<ImmutableTerm> typeTerms, TermFactory termFactory, VariableNullability variableNullability) Excludes blank nodes
Optional<TermTypeInference>	inferType(com.google.common.collect.ImmutableList<? extends ImmutableTerm> terms)
boolean	isAlwaysInjectiveInTheAbsenceOfNonInjectiveFunctionalTerms() When the function symbol is, in the absence of non-injective functional sub-terms, sometimes but not always injective, please override isInjective(...)

Methods inherited from class it.unibz.inf.ontop.model.term.functionsymbol.impl.ReduciblePositiveAritySPARQLFunctionSymbolImpl

buildTermAfterEvaluation, tolerateNulls

Methods inherited from class it.unibz.inf.ontop.model.term.functionsymbol.impl.SPARQLFunctionSymbolImpl

getIRI, getOfficialName

Methods inherited from class it.unibz.inf.ontop.model.term.functionsymbol.impl.SPARQLLikeFunctionSymbolImpl

extractLexicalTerm, extractRDFTermTypeTerm, isRDFFunctionalTerm, mayReturnNullWithoutNullArguments

Methods inherited from class it.unibz.inf.ontop.model.term.functionsymbol.impl.FunctionSymbolImpl

analyzeInjectivity, canBeSafelyDecomposedIntoConjunction, decomposeInjectiveTopFunctionalTerm, enableIfElseNullLifting, evaluateIsNotNull, evaluateNullability, evaluateStrictEq, evaluateStrictEqWithFunctionalTerm, evaluateStrictEqWithNonNullConstant, getExpectedBaseType, getExpectedBaseTypes, isAggregation, isDeterministic, isInjective, isNullable, proposeProvenanceVariables, simplify, simplifyAsGuaranteedToBeNonNull, transformIntoRegularArguments, tryToLiftMagicNumbers

Methods inherited from class it.unibz.inf.ontop.model.term.impl.PredicateImpl

equals, getArity, getName, hashCode, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface it.unibz.inf.ontop.model.term.functionsymbol.FunctionSymbol

analyzeInjectivity, evaluateIsNotNull, evaluateNullability, evaluateStrictEq, getExpectedBaseType, isAggregation, isDeterministic, isNullable, proposeProvenanceVariables, simplify, simplifyAsGuaranteedToBeNonNull

Methods inherited from interface it.unibz.inf.ontop.model.term.functionsymbol.Predicate

getArity, getName

Constructor Detail

StrSPARQLFunctionSymbolImpl

protected StrSPARQLFunctionSymbolImpl(RDFTermType abstractRDFType,
                                      RDFDatatype xsdStringType,
                                      ObjectRDFType bnodeType)

Method Detail

computeLexicalTerm

protected ImmutableTerm computeLexicalTerm(com.google.common.collect.ImmutableList<ImmutableTerm> subLexicalTerms,
                                           com.google.common.collect.ImmutableList<ImmutableTerm> typeTerms,
                                           TermFactory termFactory,
                                           ImmutableTerm returnedTypeTerm)

Description copied from class: ReduciblePositiveAritySPARQLFunctionSymbolImpl

Compute the lexical term when there is no input type error

Specified by:

computeLexicalTerm in class ReduciblePositiveAritySPARQLFunctionSymbolImpl

computeTypeTerm

protected ImmutableTerm computeTypeTerm(com.google.common.collect.ImmutableList<? extends ImmutableTerm> subLexicalTerms,
                                        com.google.common.collect.ImmutableList<ImmutableTerm> typeTerms,
                                        TermFactory termFactory,
                                        VariableNullability variableNullability)

Specified by:

computeTypeTerm in class ReduciblePositiveAritySPARQLFunctionSymbolImpl

evaluateInputTypeError

protected ImmutableExpression.Evaluation evaluateInputTypeError(com.google.common.collect.ImmutableList<ImmutableTerm> subLexicalTerms,
                                                                com.google.common.collect.ImmutableList<ImmutableTerm> typeTerms,
                                                                TermFactory termFactory,
                                                                VariableNullability variableNullability)

Excludes blank nodes

Overrides:

evaluateInputTypeError in class ReduciblePositiveAritySPARQLFunctionSymbolImpl

isAlwaysInjectiveInTheAbsenceOfNonInjectiveFunctionalTerms

public boolean isAlwaysInjectiveInTheAbsenceOfNonInjectiveFunctionalTerms()

Description copied from class: FunctionSymbolImpl

When the function symbol is, in the absence of non-injective functional sub-terms, sometimes but not always injective, please override isInjective(...)

Specified by:

isAlwaysInjectiveInTheAbsenceOfNonInjectiveFunctionalTerms in class FunctionSymbolImpl

inferType

public Optional<TermTypeInference> inferType(com.google.common.collect.ImmutableList<? extends ImmutableTerm> terms)

canBePostProcessed

public boolean canBePostProcessed(com.google.common.collect.ImmutableList<? extends ImmutableTerm> arguments)

Could be allowed in the future